Buy IWC watches will be 150 years old next year. To celebrate the opportunity, the manufacturer based in Schaffhausen is planning to announce a special Jubilee Collection at SIHH, which consists of 27 limited editions of various collections. In front of the Geneva Watch Fair, the new Portuguese Constant-Force Tourbillon Edition “150 Years” is the first IWC combining a constant force tourbillon and a moon phase display. One day after five years. Here, I see this beauty early in an impressive and very complex movement housing.
Replica IWC watches celebrates 150 years. In commemoration of this important milestone, this brand announces SIHH 2018 (limited watch of more than 27 kinds of limited model). I share a common feature, especially white or blue lacquered dial. Believe us, SIHH 2018 will make a considerable collector happy). These limited versions are included in most collections including Porto Ficer, Portofino, Pilot’s Clock, Da Vinci’s family.
IWC Portuguese Constant Force Tourbillon Edition has 150 years history. This symbolic Portuguese 15-piece limited edition comes with the new Caliber 94805. With the evolution of Caliber 94800, on both hemispheres, not the twin indications of the age of the moon), this needs to be adjusted only one day after 577.5 years.
From a technical point of view, the movement integrates the two mechanisms to improve the chronometer, countering the reduction of gravity and torque, two of the main phenomena affecting the accuracy of the watch.
First, the oversized Tourbillon in 9 (with just 15.8 mm diameter …) is aimed to counteract the negative effect of gravity. It operates at a classical frequency of 18,000 vibrations per hour, but it is held under a thin beam. Second, the tourbillon is coupled with a constant force device to transmit even impulses to the oscillator. Constant force is the holy grail of watch making and chronometer.
Since the balance wheel is not completely isochronous, the change in driving force supplied to the timed regulator affects the speed. Isochronous means that the period of vibration does not depend on the amplitude of vibration. If various solutions were designed, the perfect IWC watches elected to incorporate additional escapement between the escape wheel and the fourth wheel. Every second, this plays a role of temporary energy storage, winds a coil spring that drives the escape wheel with constant energy and maintains balance.
This mechanism is integrated into the tourbillon and explains the abnormal discrete motion of the cage and second hand (1 second step). In order to drive this large and highly complex constant force turbulence, the Caliber 94805 uses two barrels to store up to four days of power reserve (48 hours in constant force mode).
Caliber 94805 features 18 K gold “150 Year” Jubilee Medallion set on the main plate decorated with Geneva stripes. It is housed in a symbolic Portuguese case that does not require referrals. With a diameter of 46 mm and a relatively thin 13 mm, it is made from the most noble of all metals, platinum. Under the arched edge sapphire glass, the white dial has lacquered finish and black marking applied. It is paired with blue hands. The exact moon phase is displayed at 1 o’clock and the power reserve is displayed at 4 o’clock.